Answer:
mean = 10.2 minutes
median = 9.5 minutes
Step-by-step explanation:
To find the mean, add up all of the results and then divide by the number of students in the sample. Therefore, the work should look like this: 15+8+7+7+11+13=61 --> 61/6=10.1666667
To find the median, order the results from least to greatest and then notice which number is the middle value. Since there is an even number of students in the sample, you will find that both 8 and 11 are the middle values when you put them all in numerical order (7, 7, 8, 11, 13, 15). Therefore, you must find the average of those two number in order to get the median. (8+11=19 --> 19/2=9.5)
1.54 because 1.5 is the same thing as 1.50
He can make 140 different outfits
Use the formula m = y2 - y1 / x2 - x1
-2 - 3 / 7 - 4
-5 / 3
the slope of the line in simplest form is -5/3
Answer:
where r yr series
Step-by-step explanation:
For example, the sequence 3, 5, 7, 9 ... is arithmetic because the difference between consecutive terms is always two. The sequence 21, 16, 11, 6 ... is arithmetic as well because the difference between consecutive terms is always minus five.
hope it helps
